package com.itcam.reflect;

/**
 * @author : Cammy.Wu
 * Description : 什么是反射？
 */

public class Test02 extends Object{

    public static void main(String[] args) throws ClassNotFoundException {
        // 通过反射获取类的Class对象
        Class<?> c1 = Class.forName("com.itcam.reflect.User");
        System.out.println("c1 = " + c1);

        // 一个类在内存中只有一个Class对象
        // 一个类被加载后，类的整个结构都会被封装在Class对象中
        Class<?> c2 = Class.forName("com.itcam.reflect.User");
        Class<?> c3 = Class.forName("com.itcam.reflect.User");
        Class<?> c4 = Class.forName("com.itcam.reflect.User");

        System.out.println(c2.hashCode());
        System.out.println(c3.hashCode());
        System.out.println(c4.hashCode());

    }
}

class User{
    private int id;
    private String name;
    private int age;
    public int money;

    public User(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }

    public User() {
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}